CN108995764A - A kind of LNG transport rudder for ship sleeve installation method - Google Patents
A kind of LNG transport rudder for ship sleeve installation method Download PDFInfo
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- CN108995764A CN108995764A CN201810928126.3A CN201810928126A CN108995764A CN 108995764 A CN108995764 A CN 108995764A CN 201810928126 A CN201810928126 A CN 201810928126A CN 108995764 A CN108995764 A CN 108995764A
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- rudder
- sleeve
- rudder sleeve
- steering gear
- welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of LNG to transport rudder for ship sleeve installation method, and using steering gear flat segmentation and the integral hoisting of rudder sleeve, rudder sleeve is limited reduction by space, lifts easier；Installation positioning rudder sleeve, saves the positioning in segmentation rudder head center line, avoids secondary positioning and inspection on building berth；Rudder sleeve is fixed using in steering gear flat segmentation, and is being segmented upper built-up welding groove, the subsequent adjustment on building berth is can be reduced due to the caused workload of deviation accumulation at segment folding, reduces high altitude operation, improve construction environment；Radius off-set joint is adjusted no more than 2mm and hot work using built-up welding groove to weld seam fit-up gap, reinforcing positioning is carried out using zigzag arrangement horse plate, and use the welding sequence, welding loading can be reduced, thermal weld stress can be reduced, welding deformation can be reduced, installation effectiveness and installation accuracy are improved, reduces machining time and cost.
Description
Technical field
The present invention relates to Shipping fields more particularly to a kind of LNG to transport rudder for ship sleeve installation method.
Background technique
A kind of LNG transport rudder for ship sleeve installation is related to the connection of rudder sleeve and steering gear flat segmentation, steering gear flat segmentation and main
The subsequent installation of connection, rudder stock and rudder blade that base is segmented, and the technical requirements of rudder sleeve installation are as follows: practical rudder sleeve
Upper end center point, lower end central point relative theory rudder stock centerline deviation are not more than 2mm in either direction, on practical rudder sleeve
End face relative theory height tolerance 3mm makes on hull center line and is segmented bow datum mark (FR35) distance away from main engine bed
For 28000 ground sampling point and practical rudder stock center line extend to the intersection point on building berth ground in any direction the upper deviation no more than 1mm.
For rudder sleeve installation, there is several difficult points: 1. required precision is high, and shipyard is before installing rudder sleeve, rudder sleeve
There are surpluses for internal-and external diameter and length, to complete installation accuracy requirement by subsequent roughing and finishing；2. installing rudder
When sleeve, it is related to connection, rudder stock and the rudder blade of connection, the steering gear flat segmentation and main engine bed segmentation of rudder sleeve and steering gear flat segmentation
Subsequent installation will increase the workload of positioning and inspection if installation procedure is improper；3. the segmentation being related to is closed up on building berth
When, often since deviation is accumulated, it is overproof to cause to close up connector assembly dislocation, gap, such as directly construct on building berth, high altitude operation,
Difficulty increases；4. since rudder sleeve is between rudder sleeve and rudder blade, LNG cargo ship work when rudder sleeve by external force influenced compared with
Greatly, rudder sleeve and steering gear flat are segmented all attachment weld requirement full penetrations, and rudder sleeve and rudder therefore in design
Cabin segmental structure is complicated, and in junction, weld seam is more, causes the serious precision that will appear after the completion of welding overproof.
Summary of the invention
In order to overcome above-mentioned deficiency, the present invention provides a kind of LNG to transport rudder for ship sleeve installation method.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of LNG transport rudder for ship sleeve installation side
Method, the rudder sleeve and steering gear flat are segmented integral hoisting is expired after the completion of the positioning of rudder sleeve by control welding deformation to building berth
Sufficient installation accuracy requirement, steps are as follows for the rudder sleeve installation method:
S1, fixed rudder sleeve are segmented fixed rudder sleeve in steering gear flat；
S2, connector preliminary treatment, by way of in groove surface build-up welding, the segmentation of adjustment steering gear flat and had weldering at rudder sleeve connection
It stitches fit-up gap and is less than or equal to 2mm；
S3, integral hoisting, steering gear flat segmentation and rudder sleeve integral hoisting to building berth；
S4, installation positioning are segmented after closing up on building berth with main engine bed to steering gear flat segmentation, place in rudder sleeve upper surface
One angle steel marks upper surface central cross line on angle steel, and a 5mm circular hole is processed at venter of relicle, with this
0.8mm messenger wire is drawn to pass through rudder sleeve as starting point, on messenger wire vertical to building berth ground a bit, the theoretical rudder stock center that will have been measured
Line extends to the intersection point on building berth ground as datum mark, compares the position of the two o'clock, further corrects the position of rudder sleeve；It protects
It demonstrate,proves after the position of weldering front rudder sleeve meets installation accuracy requirement, carries out reinforcing positioning steering gear flat point using zigzag arrangement horse plate
Section and had weld seam at rudder sleeve connection；
S5, connector secondary treatment, carry out hot work in advance, and amendment steering gear flat segmentation connects with the dislocation having at rudder sleeve connection
Head guarantees that steering gear flat segmentation meets matching requirements before symmetrically welding simultaneously with rudder sleeve connection connector；
S6, welding, using even numbers welder, carry out symmetrical welding simultaneously using rudder sleeve centerline as center axis is with building berth ground
Circumferential weld at rudder sleeve upper end is first soldered, then will put down at lower end according to intermediate, sequence from inside to outside behind first both ends by downside
Seam weld is complete, then by between top and bottom circumferential weld, transverse joint and vertical seam weld it is complete, last outer side seal board seam at welded connecting.
Preferably, the fixed hunchbacked sleeve of the step S1 pulls hunchbacked sleeve in the segmentation of hunchbacked cabin, and hunchbacked set is fixed with drawing horse
Cylinder.
Preferably, stick liner at the groove back side for fit-up gap deviation in step S2, groove front it is unilateral into
Row repair welding, after gap to be assembled is not more than 2mm, removal back side liner, the weld seam for fairing built-up welding of polishing.
The advantages of this installation method invention is: (1) using steering gear flat segmentation and the integral hoisting of rudder sleeve, rudder sleeve is by space
Limitation reduces, and lifts easier；(2) the installation positioning rudder sleeve on building berth, saves the positioning in segmentation rudder head center line, keeps away
Exempt from secondary positioning and inspection；(3) it is segmented fixed rudder sleeve using in steering gear flat, and is being segmented upper built-up welding groove, can be reduced subsequent
Adjustment reduces high altitude operation due to workload caused by deviation accumulation at segment folding on building berth, improves construction environment；(4)
Radius off-set joint is adjusted no more than 2mm and hot work using built-up welding groove to weld seam fit-up gap, horse plate is arranged using zigzag
Reinforcing positioning is carried out, and uses the welding sequence, welding loading can be reduced, thermal weld stress can be reduced, can be reduced
Welding deformation improves installation effectiveness and installation accuracy, reduces machining time and cost.
Using above embodiment, when steering gear flat segmentation is with the welding of rudder sleeve, welding loading is reduced, and sweating heat is defeated
Entering to reduce, construction environment makes moderate progress, and welding deformation amount is reduced, when final verification, rudder sleeve upper end center point and theoretical rudder stock
Centerline deviation is -1mm on captain direction, is -1mm on beam direction, in rudder sleeve lower end central point and theoretical rudder stock
Heart line deviation is 0 on captain direction, on beam direction is -2mm, practical rudder sleeve upper surface relative axis height tolerance+
3mm meets installation accuracy requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of rudder sleeve；
Fig. 2 is the step flow chart of the method for the present invention.
Wherein: 1, rudder sleeve；2, A circumferential weld；3, flush joint；4, B circumferential weld；5, transverse joint；6, seam is found；7, sealing plate stitches.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
It, can also be indirectly connected through an intermediary to be to be connected directly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
Rudder for ship sleeve installation method, the rudder set are transported referring to figs. 1 to a kind of LNG of the embodiment of the present invention of Fig. 2 description
Cylinder is segmented integral hoisting with steering gear flat and meets installation accuracy by controlling welding deformation after the completion of the positioning of rudder sleeve to building berth
It is required that steps are as follows for the rudder sleeve installation method:
S1, fixed rudder sleeve 1 pull rudder sleeve 1 in steering gear flat segmentation, and fix rudder sleeve 1 with drawing horse；
S2, connector preliminary treatment, by way of in groove surface build-up welding, the segmentation of adjustment steering gear flat and 1 junction of rudder sleeve are all
Weld seam fit-up gap is not more than 2mm, reduces high altitude operation, improves construction environment；
S3, integral hoisting, steering gear flat segmentation and 1 integral hoisting of rudder sleeve to building berth, are segmented with main engine bed and connect, keep lifting simpler
Just；
S4, installation positioning are segmented after closing up on building berth with main engine bed to steering gear flat segmentation, put in 1 upper surface of rudder sleeve
An angle steel is set, upper surface central cross line is marked on angle steel, and processes a 5mm circular hole at venter of relicle, with
This draws 0.8mm messenger wire to pass through rudder sleeve 1 as starting point, on messenger wire vertical to building berth ground a bit, the theoretical rudder stock that will have been measured
Center line extends to the intersection point on building berth ground as datum mark, compares the position of the two o'clock, further corrects the position of rudder sleeve 1
It sets, can save and rudder stock center line is positioned in segmentation, avoid secondary positioning and inspection, guarantee in weldering front rudder sleeve 1
Position meet installation accuracy require after, using zigzag arrangement horse plate carry out reinforce positioning steering gear flat segmentation with rudder sleeve 1 connect
Connecing place has weld seam, can obviously control wave, torsion that welding steering gear flat is segmented and generates when 1 junction weld seam of rudder sleeve in this way
Song deformation；
S5, connector secondary treatment carry out hot work, the segmentation of amendment steering gear flat and all dislocation in 1 junction of rudder sleeve in advance
Connector guarantees that steering gear flat segmentation meets matching requirements with 1 jointing of rudder sleeve, convenient symmetrically apply simultaneously in welding
Weldering；
S6, welding carry out symmetrical welding simultaneously, using 1 center line of rudder sleeve as center axis, with building berth ground using even numbers welder
Preferentially steering gear flat is segmented and 1 junction upper end A ring of rudder sleeve according to intermediate, sequence from inside to outside behind first both ends for downside
Seam 2 is soldered, and is then soldered rudder sleeve 1 and steering gear flat junction lower end twice flush joint 3, then by 1 top and bottom of rudder sleeve it
Between B circumferential weld 4, transverse joint 5 and four vertical seams 6 be soldered, finally side seal board seam 7 outside junction is soldered.
For fit-up gap deviation in step S2, liner is sticked at the groove back side, carries out repair welding in groove front unilateral side, to
After fit-up gap is not more than 2mm, removal back side liner, the weld seam for fairing built-up welding of polishing.
The advantages of this installation method invention is: (1) using steering gear flat segmentation and the integral hoisting of rudder sleeve, rudder sleeve is by space
Limitation reduces, and lifts easier；(2) the installation positioning rudder sleeve on building berth, saves the positioning in segmentation rudder head center line, keeps away
Exempt from secondary positioning and inspection；(3) it is segmented fixed rudder sleeve using in steering gear flat, and is being segmented upper built-up welding groove, can be reduced subsequent
Adjustment reduces high altitude operation due to workload caused by deviation accumulation at segment folding on building berth, improves construction environment；(4)
Radius off-set joint is adjusted no more than 2mm and hot work using built-up welding groove to weld seam fit-up gap, horse plate is arranged using zigzag
Reinforcing positioning is carried out, and uses the welding sequence, welding loading can be reduced, thermal weld stress can be reduced, can be reduced
Welding deformation improves installation effectiveness and installation accuracy, reduces machining time and cost.
Using above embodiment, when steering gear flat segmentation is with 1 welding of rudder sleeve, welding loading is reduced, sweating heat
Input is reduced, and construction environment makes moderate progress, and welding deformation amount is reduced, when final verification, 1 upper end center point of rudder sleeve and theoretical rudder
Bar centerline deviation is -1mm on captain direction, is -1mm, 1 lower end central point of rudder sleeve and theoretical rudder stock on beam direction
Centerline deviation is 0 on captain direction, is -2mm on beam direction, and practical 1 upper surface relative axis height of rudder sleeve is inclined
Difference+3mm meets installation accuracy requirement.
In the description of this specification, the description meaning of reference term " one embodiment ", " example " or " some examples " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or show
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples
It can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (3)
1. a kind of LNG transports rudder for ship sleeve installation method, it is characterised in that: the rudder sleeve and steering gear flat segmentation integral hoisting are extremely
Building berth meets installation accuracy requirement, the rudder sleeve installation method step by controlling welding deformation after the completion of the positioning of rudder sleeve
It is rapid as follows:
S1, fixed rudder sleeve are segmented fixed rudder sleeve in steering gear flat；
S2, connector preliminary treatment, by way of in groove surface build-up welding, the segmentation of adjustment steering gear flat and had weldering at rudder sleeve connection
It stitches fit-up gap and is less than or equal to 2mm；
S3, integral hoisting, steering gear flat segmentation and rudder sleeve integral hoisting to building berth；
S4, installation positioning are segmented after closing up on building berth with main engine bed to steering gear flat segmentation, place in rudder sleeve upper surface
One angle steel marks upper surface central cross line on angle steel, and a 5mm circular hole is processed at venter of relicle, with this
0.8mm messenger wire is drawn to pass through rudder sleeve as starting point, on messenger wire vertical to building berth ground a bit, the theoretical rudder stock center that will have been measured
Line extends to the intersection point on building berth ground as datum mark, compares the position of the two o'clock, further corrects the position of rudder sleeve；It protects
It demonstrate,proves after the position of weldering front rudder sleeve meets installation accuracy requirement, carries out reinforcing positioning steering gear flat point using zigzag arrangement horse plate
Section and had weld seam at rudder sleeve connection；
S5, connector secondary treatment, carry out hot work in advance, and amendment steering gear flat segmentation connects with the dislocation having at rudder sleeve connection
Head guarantees that steering gear flat segmentation meets matching requirements before symmetrically welding simultaneously with rudder sleeve connection connector；
S6, welding, using even numbers welder, carry out symmetrical welding simultaneously using rudder sleeve centerline as center axis is with building berth ground
Circumferential weld at rudder sleeve upper end is first soldered, then will put down at lower end according to intermediate, sequence from inside to outside behind first both ends by downside
Seam weld is complete, then by between top and bottom circumferential weld, transverse joint and vertical seam weld it is complete, last outer side seal board seam at welded connecting.
2. installation method according to claim 1, which is characterized in that the fixed rudder sleeve of the step S1 is segmented in steering gear flat
Rudder sleeve is pulled in, and fixes rudder sleeve with drawing horse.
3. installation method according to claim 1, which is characterized in that for fit-up gap deviation in step S2, in groove
Liner is sticked at the back side, in the unilateral progress repair welding in groove front, after gap to be assembled is not more than 2mm, and removal back side liner, light of polishing
Along the weld seam of built-up welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928126.3A CN108995764B (en) | 2018-08-15 | 2018-08-15 | Method for installing rudder sleeve of LNG (liquefied Natural gas) transport ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928126.3A CN108995764B (en) | 2018-08-15 | 2018-08-15 | Method for installing rudder sleeve of LNG (liquefied Natural gas) transport ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108995764A true CN108995764A (en) | 2018-12-14 |
| CN108995764B CN108995764B (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810928126.3A Active CN108995764B (en) | 2018-08-15 | 2018-08-15 | Method for installing rudder sleeve of LNG (liquefied Natural gas) transport ship |
Country Status (1)
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| CN (1) | CN108995764B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676276A (en) * | 2018-12-27 | 2019-04-26 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of welding method of non-centripetal canals and thin-wall stainless steel pressure vessel |
| CN110844022A (en) * | 2019-09-27 | 2020-02-28 | 广州文冲船厂有限责任公司 | Installation method of ship rudder cylinder assembly |
| CN112222744A (en) * | 2020-09-29 | 2021-01-15 | 广州市珂迪兹皮具有限公司 | Intelligent welding equipment |
| CN113148058A (en) * | 2021-04-29 | 2021-07-23 | 江苏扬子三井造船有限公司 | Process for installing and positioning double-rudder sleeve and tail casting in segmented construction stage |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676276A (en) * | 2018-12-27 | 2019-04-26 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of welding method of non-centripetal canals and thin-wall stainless steel pressure vessel |
| CN109676276B (en) * | 2018-12-27 | 2023-08-25 | 哈电集团（秦皇岛）重型装备有限公司 | Welding method of non-centripetal pipe and thin-wall stainless steel pressure vessel |
| CN110844022A (en) * | 2019-09-27 | 2020-02-28 | 广州文冲船厂有限责任公司 | Installation method of ship rudder cylinder assembly |
| CN112222744A (en) * | 2020-09-29 | 2021-01-15 | 广州市珂迪兹皮具有限公司 | Intelligent welding equipment |
| CN113148058A (en) * | 2021-04-29 | 2021-07-23 | 江苏扬子三井造船有限公司 | Process for installing and positioning double-rudder sleeve and tail casting in segmented construction stage |
| CN113148058B (en) * | 2021-04-29 | 2023-08-15 | 江苏扬子三井造船有限公司 | Process for installing and positioning double rudder sleeve and tail casting in stage of sectional construction |
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| CN108995764B (en) | 2022-08-23 |
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Effective date of registration: 20221229 Address after: 226116 No. 1, Xin'anjiang Road, Binjiang Street, Haimen District, Nantong, Jiangsu Patentee after: CHINA MERCHANTS HEAVY INDUSTRY (JIANGSU) Co.,Ltd. Patentee after: China Merchants Jinling shipping (Nanjing) Co.,Ltd. Address before: 226100 Xin'anjiang Road, Binjiang Street, Haimen City, Nantong City, Jiangsu Province Patentee before: CHINA MERCHANTS HEAVY INDUSTRY (JIANGSU) Co.,Ltd. |